A little over a week ago, an update to ultrasn0w brought a software unlock for iPhone 4 owners. Unfortunately, that release was also blamed for users experiencing a drastic decrease in battery life; some have reportedly seen the battery drop 5% an hour while the phone was in sleep mode. For those who rely on the unlock for their iPhones, the good news is that ultrasn0w has just been updated once again with a several tweaks that’s supposed to fix the issue. If you were previously on 1.0-1 and found your battery life affected, you may want to install version 1.1-1 via Cydia. For instructions on how to get ultrasn0w running, take a look here. And speaking of battery performance, if you find your iPhone 4 draining exceptionally fast, make sure that you had in fact set it up as a new phone, as opposed to restoring from an old backup.

No reason to be long-winded with this one: my words will go one ear and out t’ other. The iPhone Dev Team have just released their new OS 3.0 hack-able software. However, it is recommended to know what service you need before delving into the convolutions of an unlock. Read the information after the jump verycarefully and follow the team’s website before you make any rash decision as the unlock will currently render your non-kosher carrier service useless.

If you are an avid Jailbreaker, get ready for The iPhone Dev Team’s latest and greatest, just don’t expect it too early. Currently, the team have managed to officially unlock OS 3.0 on the carrier side, but they won’t release it too soon as Apple might throw a last-minute spanner into the works. In any case, the video shows the unlocked 3G and explains briefly the baseband unlock.